JC
John Connolly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this John Connolly across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Ellen & John — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Connolly |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | LOUISVILLE CITY |
| 1935 Residence (County) | JEFFERSON |
| Additional Details | |
| Occupation | Time Keeper |
| Industry | Lumber Company |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1500 |
| Highest Grade | C-4 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Time Keeper |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1909 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Connolly | Spouse | — | 25 | ~1915 |
| John Connolly | Head | — | 31 | ~1909 |
| John Connolly | Son | — | 2 | ~1938 |
| Mary Connolly | Daughter | — | 3 | ~1937 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 11
Jefferson, Kentucky · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Son, age 21
Jefferson, Kentucky · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | John J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Clerk |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 31
Jefferson-County, Kentucky · implied b. ~1909 — 4 household members
| Surname | Connolly |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | LOUISVILLE CITY |
| 1935 Residence (County) | JEFFERSON |
| Occupation | Time Keeper |
| Industry | Lumber Company |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1500 |
| Highest Grade | C-4 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Connolly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ellen Connolly (~0.92 confidence) and father John Connolly (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ellen Connolly
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
John Connolly
b. ~1874
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Connolly
Head · 1940 · age 31 · b. ~1909 · Kentucky
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01372-00252)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amelia B Hatch | 80 | Head | — | Kentucky |
| 2 | Georgia A Hatch | 55 | Daughter | — | Kentucky |
| 3 | Horace G Hayes | 72 | Head | — | Kentucky |
| 4 | Mary Hayes | 69 | Wife | — | Tennessee |
| 5 | J Banks Taylor | 29 | Head | Druggist | Tennessee |
| 6 | Hattie E Taylor | 26 | Wife | Cashier | Kentucky |
| 7 | Melvin A Chestnut | 46 | Head | Stationary Engineer | Indiana |
| 8 | Dona Chestnut | 47 | Wife | — | Indiana |
| 9 | John W Huddleston | 40 | Head | Fireman | Kentucky |
| 10 | Lilian Huddleston | 34 | Wife | — | Kentucky |
| 11 | Gloria R Huddleston | 14 | Daughter | — | Kentucky |
| 12 | Frank J Nuneman | 37 | Head | Yard-Foreman | Kentucky |
| 13 | Emily L Nuneman | 34 | Wife | — | Kentucky |
| 14 | Dorathy M Nuneman | 12 | Daughter | — | Kentucky |
| 15 | Frances A Nuneman | 3 | Daughter | — | Kentucky |
| 16 | Walter C Smith | 30 | Head | Accountant | Mississippi |
| 17 | Magaret G Smith | 25 | Wife | — | Kentucky |
| 18 | C E Ray | 49 | Head | Foreman Of Electric Insulation | Alabama |
| 19 | Minnie Ray | 32 | Wife | — | Tennessee |
| 20 | Magaret Looper | 12 | Daughter | — | Kentucky |
| 21 | Samuel R Williams | 40 | Head | Superintendent | Indiana |
| 22 | Dessie F Williams | 44 | Wife | — | Indiana |
| 23 | Bernard D Williams | 20 | Son | Laborer | Indiana |
| 24 | M Alice Williams | 17 | Daughter | — | Indiana |
| 25 | Helen F James | 23 | Daughter | — | Indiana |
| 26 | Peggy L James | 1 | G-Daughter | — | Kentucky |
| 27 | Carl Nevitt | 47 | Head | Mill Worker Finish Mill | Kentucky |
| 28 | Cretia B Nevitt | 45 | Wife | — | Kentucky |
| 29 | Allen B Nevitt | 19 | Son | Hand Sander | Kentucky |
| 30 | John J Connolly THIS PERSON | 31 | Head | Time Keeper | Kentucky |
| 31 | Mildred A Connolly | 25 | Wife | — | Kentucky |
| 32 | Mary Joan Connolly | 3 | Daughter | — | Kentucky |
| 33 | John J Connolly | 2 | Son | — | Kentucky |
| 34 | Teddy C Pittroff | 35 | Head | Machinist | Alabama |
| 35 | Mary C Pittroff | 31 | Wife | — | Alabama |
| 36 | Teddy C Pittroff | 12 | Son | — | Alabama |
| 37 | Kathrine J Pittroff | 10 | Daughter | — | Alabama |
| 38 | Robert M Pittroff | 8 | Son | — | Alabama |
| 39 | Patricia M Pittroff | 4 | Daughter | — | Alabama |
| 40 | Mary E Pittroff | 1 | Daughter | — | Kentucky |
Related Census Records
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)